#### Filter Results:

- Full text PDF available (4)

#### Publication Year

1972

2010

- This year (0)
- Last 5 years (0)
- Last 10 years (2)

#### Publication Type

#### Co-author

#### Journals and Conferences

Learn More

Let A be a complete discrete valuation ring with possibly imperfect residue field. The purpose of this paper is to give a notion of conductor for Galois representations over A that generalizes the classical Artin conductor. The definition rests on two general results: there is a moduli space that parametrizes the ways of modifying A so that its residue… (More)

We give a concrete description of the category of étale algebras over the ring of Witt vectors of a given finite length with entries in an arbitrary ring. We do this not only for the classical p-typical and big Witt vector functors but also for certain analogues over arbitrary local and global fields. The basic theory of these generalized Witt vectors is… (More)

This is a foundational account of the étale topology of generalized Witt vectors and of related constructions. The theory of the usual, “p-typical” Witt vectors of p-adic schemes of finite type is already reasonably well developed. The main point here is to generalize this theory in two different ways. We allow not just p-typical Witt vectors but also, for… (More)

- James M. Borger, Sarah Kang, Philip N. Klein
- Network Flows And Matching
- 1991

- James M. Borger
- 2001

Let A be a complete discrete valuation ring with possibly imperfect residue field, and let χ be a one-dimensional Galois representation over A. I show that the non-logarithmic variant of Kato’s Swan conductor is the same for χ and the pullback of χ to the generic residual perfection of A. This implies the conductor from “Conductors and the moduli of… (More)

- Jerome R. Evans, Horst Wachs, James M. Borger
- American journal of mental deficiency
- 1972

- Jerome R. Evans, James M. Borger
- Cortex; a journal devoted to the study of the…
- 1975

Past research has indicated a relationship between degree of unilateral usage of body parts and right-left discrimination skills. Further evidence for such an association was sought by comparing the scores of hemiplegic persons of limited intelligence on a test of rather advanced righ-left discrimination skills devised by the authors to those earned by a… (More)

- ‹
- 1
- ›